Resilient driving connection



Sept. 17, 1929. w, UGGLA RESILIENT DRIVING CONNECTION Original Filed Jan. 30,' 1924 V frzz erztor W ,& y '29 m flllorneys Patented Se t. 17; 1929 UNITED "STATES WILHELM ROBERT UGGLA, or 'MORBY, swnnnn j RESIIIENT DRIVING TCONNECTIHON f Original application filed J'anuary so, 1924, Serial No. 689,577, and in Sweden February 1, 1923.

'andthis application filed November 9, 1925. Serial No. 67,953.

ing pushed laterally into and withdrawn from each other respectively. I

In the accompanying drawing Fig. 1 shows in an elevation partly in alongitudinal section a resilient coupling arranged in accordance with this invention. Figure 2 is a side elevation of one of the coupling'members.

Figure 3 is a partlyside elevation of the other coupling member and partly a section along the line IIIIII of Figure 1. p

The coupling member 1 is provided with axial projections 2 and 3, located in pairs on the same radius of the Ymember, while the other coupling member l is provided with sine gle axial projections 5, whichare so located and have such dimensions, that they will be located in the spaces respectively between two projections2 and'y3 of thecoupling member 1, when the coupling members are pushed laterally intoone another. The said projections 2, 3 and 5 may be madeintegral with the coupling-members respectively as shown. Be

tween the sets of projections thus disposed helical springs 6 are provided, which are lo cated peripherically and the ends of which bear against the sets. The spaces between the projections 2, 2 and 3, 3 of'the coupling-member 1 are filled up by walls 7 and8 concentric with the said member, so that the springs are located in chambers, covered by the. memher 4.

If the coupling-member l'isthe driving part, the projections 2cand 3 tend to move the springs 6 and compress the same to a certain degree, the projections 2 a'ndBof each set being thus somewhat displaced with re- Divided lation to the. projections 5. During this op:

eration the springs 6 acted upon by the pro- ]ections and 3 and bearing against the pro- 1 jections 5 of the coupling-member 4 cause the member last mentioned to rotate. Owing to the provision of the springs a resilient],

transmission of the motion free from jerks is effected, in which transmission all the springs partake. It is ust the same Whenthe coupling-member 11s rotated inthe opposite.

direction or if the coupling-member 4 constitutes the driving part. Owing to the fact that the springs 6 only bear against the pro ections 2, 8 and 5 and are not fixed'to the sameand operate through compression, it is sulficientto place the springs, having a cerv.

tain initial tension, into the spaces between the sets of projections. The manufacture of the resilient coupling is thereby considerably facilitated. The parts ofthe coupling are easily assembled and the coupling taken asunder simply by sliding the coupling-members laterally with relation to each other. The

length of the springs may by grinding be ad usted in such an exact manner, that all springs operate practically in the same degree for the. transmission of the powerbeftween the coupling-members. The springs bear against the'pro ections 2, 3 and 5-over "their ,whole end, owing to which fact the I springs are centrally loaded. Thedimensions f of the sprmgsand the pitch of same may be pling, because all arts are enclosed in pertectly closed cham I claim:

ers.

In a resilient "couplingthe combination of two coupling members, projections extending axially from the onemember andarranged in 1 sets, located on radial lines and constituting recesses, helical springs locatedin the said recesses and bearing againstthe.projections under unloaded condition, projections extending axially from the second member and into the spaces between the projections of the said sets respectively and occupying the entire space between the springs under the said unloaded condition, each spring thus operating in both directions."

In testimony thereof I have hereunto affixed my signature.

WILHELM ROBERT UGGLA; 

